CN101993225A - Cement asphalt (CA) mortar for polymer cement substrate type ballastless track and preparation method thereof - Google Patents
Cement asphalt (CA) mortar for polymer cement substrate type ballastless track and preparation method thereof Download PDFInfo
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- CN101993225A CN101993225A CN201010265652XA CN201010265652A CN101993225A CN 101993225 A CN101993225 A CN 101993225A CN 201010265652X A CN201010265652X A CN 201010265652XA CN 201010265652 A CN201010265652 A CN 201010265652A CN 101993225 A CN101993225 A CN 101993225A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses cement asphalt (CA) mortar for a polymer cement substrate type ballastless track and a preparation method thereof, and relates to a building material for pouring the track bed of a high speed railway and a production method thereof. The CA mortar is a mixture which is formed by mixing CA mortar dry powder, CA mortar emulsified asphalt and water in the weight part ratio of 100:(50-55):(4-8), wherein the CA mortar dry powder is a mixture which consists of cement, an expansion agent, a cement quick setting agent, an antifoaming agent, a high-performance water reducer, fine sand, lignocellulose and cellulose ether; and CA mortar emulsion is slow-breaking slow-setting anionic emulsified asphalt and acrylic latex composite emulsion. The production method of the CA mortar comprises the following steps of: preparing materials, stirring the mortar emulsion and the water, adding the mortar dry powder, stirring, checking and the like. The CA mortar rubber powder and the CA mortar emulsion for producing the CA mortar are industrially produced, and the product quality is stable; the CA mortar is convenient to process and transport; and the preparation process does not have a strict stirring and charging sequence, so that the construction is convenient and quick.
Description
Technical field
The present invention relates to a kind of material of construction and preparation method thereof, particularly a kind of CA mortar for plate-type slag-free orbit that is applicable to perfusion Track and railway roadbed.
Background technology
Continuous development along with economic construction, current China railways passenger traffic just develops towards the direction of high speed, the highest operation speed per hour is called as high-speed railway at the railway more than 200 kilometers, high speed railway track proposes very high requirement to roadbed and railway roadbed, for guaranteeing the stiff stability and the high ride of track, adopting the structure formation of plate-type slag-free orbit is a kind of trend.Plate-type slag-free orbit structural elasticity layer is a Cement Asphalt mortar, be called for short the CA mortar, it consists of pitch and mixes a kind of elasticity roadbed material that other several macromolecular materials form, be the key components of not having the quarrel railway, its function is to provide reasonable track elasticity, satisfy the leveling buffered requirement of train driving, reach comfortableness.
At present, the CA mortar also is in the pilot development stage at home, and existing C A mortar flowability is bad, operable time short, sand easily separates, and solidifies the back volumetric shrinkage and exceeds standard, and cracking phenomena etc. appears in the part.The CA mortar also plays a part to transmit vertical, lateral load except bearing vertical load.
Summary of the invention
The invention provides a kind of polyalcohol cement basis plate-type slag-free orbit emulsified asphalt slurry, existing C A mortar flowability is bad, operable time is short and using method is complicated, construction technology is harsh and the problem of transportation inconvenience to solve, to satisfy the demand of high-speed railway high volume applications.
The technical solution adopted for the present invention to solve the technical problems is: a kind of polyalcohol cement basis plate-type slag-free orbit emulsified asphalt slurry, it is characterized in that: it is by the mixture that CA mortar dry powder, CA mortar emulsion and water are formed in following ratio, and each component concentration is calculated as with parts by weight in the mixture:
CA mortar dry powder 100 weight parts
CA mortar emulsion 50～55 weight parts
Water 4～8 weight parts
The mixture that above-mentioned CA mortar dry powder is made up of following component raw material, the lattice component concentration with listed as parts by weight is in the mixture:
0.8～0.88 part of cement
0.065～0.085 part of swelling agent
0.01～0.04 part of cement hardener
0.0005～0.0010 part of defoamer
0.008～0.012 part of efficient performance water reducer
2.00～2.40 parts of fine sands
0～0.0014 part of lignocellulose
0～0.0004 part of ether of cellulose
Above-mentioned CA mortar emulsion is for splitting slow hardening anionic emulsified bitumen and acrylic latex multiple emulsion slowly, and in this multiple emulsion, the listed as parts by weight in proportion of emulsified bitumen and acrylic latex is
Emulsified bitumen 100 weight parts
Acrylic latex 6-10 weight part
Above-mentioned emulsified bitumen is the mixture of being made through bitumen emulsifying machine high speed shear or grinding by matrix pitch and emulsifying agent, stablizer, water, and each component concentration with listed as parts by weight is in the mixture:
Matrix pitch 55～65 weight parts
Primary emulsion 1～3 weight part
Co-emulsifier 0.3～0.6 weight part
Water 35～40 weight parts
Stablizer 0.10～0.3 weight part
Above-mentioned acrylic latex is 50% anionic acrylic.
Another feature of the present invention is: a kind of ballastless track preparation method of CA mortar, and it may further comprise the steps:
A, get the raw materials ready:, prepare CA mortar dry powder, CA mortar emulsion and water respectively in following ratio according to the gross weight of need with the CA mortar:
CA mortar dry powder 100 weight parts
CA mortar emulsion 50～55 weight parts
Water 4～8 weight parts
B, with the measured water of pro rata and CA mortar emulsion simultaneously or successively drop in the stirrer starts stirrer and stirred 3 minutes:
C, the CA mortar dry powder that measures is dropped into stirrer, should not surpass 10 minutes from beginning to be dosed into the material time, throw expect after stirring 3～5 minutes;
D, finished product CA mortar check:, require with J-shaped funnel check CA mortar: degree of mobilization in 16～26 seconds, air content is 8%～10%
Because adopt technique scheme, polyalcohol cement basis plate-type slag-free orbit of the present invention is compared with existing CA mortar and production method thereof with emulsified asphalt slurry and production method thereof, beneficial effect is:
One, can guarantee CA mortar quality
Because polyalcohol cement basis plate-type slag-free orbit emulsified asphalt slurry of the present invention is to adopt CA mortar dry powder and CA mortar emulsion and water to be mixed and made into, wherein CA mortar dry powder product computerizeds control in factory and mixes, the CA mortar emulsion of preparation CA mortar also is to produce and become product in factory in advance, can overcome the error that the artificial batching in working-yard is brought, make product keep uniform high product quality.
Because the CA mortar emulsion adopts is anionic acrylic latex with to split slow hardening anionic emulsified bitumen slowly compound, so acrylic latex, pitch particle can adhere to well with the cement power, so its closely knit row improves greatly, makes CA mortar quality height.
Also added lignocellulose and ether of cellulose in the CA mortar dry powder of the present invention, had performance effects such as generation that reduces CA mortar crack phenomenon and the water-retentivity that strengthens the CA mortar, levelling property, film forming, cohesiveness, CA mortar quality is improved greatly.
Lignocellulose is to have the crosslinked function of intensive, mix with other materials and can overlap between the fiber of back immediately as the material of blanket, the fibrous texture of this material can be locked in the water of 2～6 times of own wts therebetween with the water conservation slow setting, this structure also has the function of conduction moisture simultaneously, make itself surface and interface all have enough moisture to carry out aquation, when the CA mortar injection, this fibrous texture can be broken, at this moment part moisture content can throw away from fiber, viscosity is reduced, and workability improves; When external force stopped, fibrous texture recovered rapidly again and moisture content is sucked back, and recovers original viscosity.
Described ether of cellulose is the semisynthetic high molecular polymer of a kind of non-ionic type, and it is applied to have compound action in the mortar of the present invention: the performance such as water conservation, levelling property, film forming, bonding that can strengthen the CA mortar.
Two, easy construction, quick
1, polyalcohol cement basis plate-type slag-free orbit of the present invention does not have the strict harsh sole order that feeds intake with the emulsified asphalt slurry process for preparation, can guarantee quality product, makes construction more convenient, quick again;
2, because the CA mortar emulsion of preparation CA mortar adopts is to split slow hardening type anionic emulsifier slowly, can provide sufficient churning time for preparation CA mortar process, operable time is long, the construction technology performance is good.
Three, convenient transportation
CA mortar dry powder of the present invention, product is just mixed even before dispatching from the factory, and before not adding water, steady quality, thereby can utilize the logistics system of high development to finish the supply of material, adopt special concrete or bulk-cement tanker and supporting machinery, just can realize that mechanize is carried and construction, be specially adapted to the occasion of high-speed railway high volume applications.
Below, the technical characterictic to the present invention's CA mortar dry powder for plate-type slag-free orbit and CA mortar for plate-type slag-free orbit and preparation method thereof is described further in conjunction with the embodiments.
Embodiment
Embodiment one～embodiment six
A kind of polyalcohol cement basis plate-type slag-free orbit emulsified asphalt slurry, by the mixture that CA mortar dry powder, CA mortar emulsion and water are formed in following ratio, each component concentration is calculated as with parts by weight in the mixture:
CA mortar dry powder 100 weight parts
CA mortar emulsion 50～55 weight parts
Water 4～8 weight parts
The mixture (weight part) that above-mentioned CA mortar dry powder is made up of cement, swelling agent, cement hardener, defoamer, high efficiency water reducing agent, the following component raw material of fine sand:
0.846 part of cement
0.070 part of swelling agent
0.027 part of cement hardener
0.00053 part of defoamer
0.010 part of high efficiency water reducing agent
2.183 parts of fine sands
This CA mortar dry powder is the mixture for preparing in plant produced, adopts packed or bulk form is transported to the working-yard.
Above-mentioned CA mortar emulsion is the multiple emulsion that anionic emulsified bitumen and acrylic latex are formed, and this ratio that meets emulsified bitumen in the emulsion and acrylic latex is calculated by weight and is:
Emulsified bitumen 100 weight parts
Acrylic latex 6～10 weight parts
Described emulsified bitumen is the mixture of being made through bitumen emulsifying machine high speed shear or grinding by matrix pitch and emulsifying agent, stablizer, water, and each component concentration with listed as parts by weight is in the mixture:
Matrix pitch 55～65 weight parts
Primary emulsion 1～3 weight part
Co-emulsifier 0.3～0.6 weight part
Water 35～40 weight parts
Stablizer 0.10～0.3 weight part
Described acrylic latex is 50% anionic acrylic.
This CA mortar emulsion packages by the 25Kkg/ bucket with plastic tank in plant produced, and time limit of service should not be above 3 months.
As a kind of conversion of the embodiment of the invention, described CA mortar emulsion also can adopt other forms of commercially available asphalt emulsion, comprises positively charged ion or anionic asphalt emulsion.
A kind of conversion as the embodiment of the invention, the moiety of described CA mortar dry powder can also increase and decrease, as adding lignocellulose with strong crosslinked function, add semisynthetic high molecular polymer-ether of cellulose of a kind of non-ionic type or the like, each components contents also can suitably increase and decrease as required.
Embodiment seven～embodiment 12
The polyalcohol cement basis plate-type slag-free orbit of the present invention CA mortar dry powder of various different proportionings in the emulsified asphalt slurry, the mixture that it is made up of cement, swelling agent, cement hardener, defoamer, high-performance water reducing agent, fine sand, lignocellulose and ether of cellulose, each embodiment get that each component concentration is calculated as with mass parts in the mixture:
0.8～0.88 part of cement
0.065～0.085 part of swelling agent
0.01～0.04 part of cement hardener
0.0005～0.0010 part of defoamer
0.008～0.012 part of high-performance water reducing agent
2.00～2.40 parts of fine sands
0～0.0014 part of lignocellulose
0～0.0004 part of ether of cellulose
In the various embodiments described above, described cement is 425 early strong ordinary Portland cements.It provides rigidity for the CA mortar, and plays quickening CA mortar emulsion in CA mortar injection process, and early strength is provided.
Described swelling agent is a kind of concrete impervious anticracking type swelling agent.Work is to form swelling property crystallization hydrate---ettringite in the CA mortar, making concrete produce appropriateness in early days expands, in concrete, set up the 0.2Mpa-0.7Mpa precompression, the tensile stress that this stress produces in the time of can roughly offsetting concrete shrinkage, and still keep the faint expansion impetus in the concrete middle and later periods, to compensate its shrinkage, the continuous fill concrete of while ettringite xln internal clearance, improved the pore fluid of concrete structure, improve degree of compactness, also reached the purpose of anti-permeation cracking-resistant.
Described cement hardener is a kind of low alkali adjustable solidification agent of novel inorganic that can accelerate concrete coagulation and setting rate, and its composition is the mixture more than 2 kinds or 2 kinds in sodium metaaluminate, gas ash, silicon ash, aluminum oxide clinker, calcined alunite, zinc sulfate, unslaked lime, the Calcium Fluoride (Fluorspan) etc.Its objective is and improve CA mortar early strength and overcome traditional accelerating chemicals alkali content height, the shortcoming that concrete is had a negative impact.
Described defoamer is the tensio-active agent formed of alcohol, ester family macromolecule mixture and derivative thereof such as polyethers, higher alcohols, Virahol, lipid acid etc.It mainly acts on is can make the CA mortar mix the air pocket that produces in the system process to break, and reduces the content of air pocket.
Described high-performance water reducing agent also is a kind of tensio-active agent, and its composition is a poly carboxylic acid system, and cement granules has dispersed, wetting, the lubrication of absorption.
Described fine sand is clean river sand or the extra large sand between 20 orders-100 order, as the fine aggregate of CA mortar.
Described lignocellulose is to have the crosslinked function of intensive, mixes to overlap as the material of blanket between the fiber of back immediately with other materials.The fibrous texture of this material can be locked in the water of 2～6 times of own wts therebetween with the water conservation slow setting, simultaneously this structure number has the function of conduction moisture content, make itself surface and interface all have enough moisture to carry out aquation, thereby reduce the generation of CA mortar crack phenomenon.When the CA mortar injection, this fibrous texture can be broken, and at this moment portion water branch throws away from fiber, and viscosity is reduced, and workability improves; When external force stopped, fibrous texture recovered rapidly again and moisture absorption is returned, and recovers original viscosity.
Described ether of cellulose is the semisynthetic high molecular polymer of a kind of non-ionic type.It is applied to have compound action among the present invention; Can strengthen the performance such as water conservation, levelling property, film forming, bonding of CA mortar.
Embodiment 13～embodiment 18
The CA mortar emulsion of the different proportionings in the CA mortar for plate-type slag-free orbit of the present invention.
This CA mortar emulsion is that anionic emulsified bitumen mixes the multiple emulsion of forming with acrylic latex, and the ratio of emulsified bitumen and acrylic latex in this mixture is calculated as by weight:
Emulsified bitumen 100 weight parts
Acrylic latex 6～10 weight parts
Emulsified bitumen in the described CA mortar emulsion is to tell shearing or grind the mixture of making that through bitumen emulsifying machine each component concentration is in the mixture by matrix pitch and emulsifying agent, stablizer, water with listed as parts by weight:
Matrix pitch 55～65 weight parts
Primary emulsion 1～3 weight part
Co-emulsifier 0.3～0.6 weight part
Water 35～40 weight parts
Stablizer 0.10～0.30 weight part
The concrete ratio of above-mentioned each component in each embodiment is referring to subordinate list four, above-mentioned matrix pitch is 70# or 90# heavy-duty road asphalt, emulsifying agent is made of primary emulsion and co-emulsifier, described primary emulsion is to split slow hardening type anionic emulsifier slowly, described co-emulsifier is an octadecyl trimethylammonium ammonia chloride, and stablizer is an organic amine.
Described vinylformic acid is 50% anionic acrylic
Embodiment 19:
The polyalcohol cement basis plate-type slag-free orbit of the present invention preparation method of emulsified asphalt slurry, it may further comprise the steps:
A. get the raw materials ready:, prepare CA mortar dry powder, CA mortar emulsion and water respectively in following ratio according to the gross weight of need with the CA mortar:
CA mortar dry powder 100 weight parts
CA mortar dry powder 100 weight parts
CA mortar emulsion 50～55 weight parts
Water 4～8 weight parts
B. with the measured water of pro rata and CA mortar emulsion simultaneously or successively drop in the stirrer, start stirrer and stirred 3 minutes:
C. the CA mortar dry powder that measures is dropped into stirrer, should not surpass 10 minutes from beginning to be dosed into the material time, throw expect after stirring 3～5 minutes;
D. finished product CA mortar check:, require with J-shaped funnel check CA mortar: degree of mobilization in 16～26 seconds, air content is 8%～10%
As a kind of conversion of the embodiment of the invention one to embodiment six, embodiment 19, described polyalcohol cement basis plate-type slag-free orbit with the CA mortar emulsion in the emulsified asphalt slurry also can be emulsified bitumen and acrylic latex at the construction field (site) in proportion the configuration form.Thereby described CA mortar for plate-type slag-free orbit also can adopt CA mortar dry powder and emulsified bitumen and acrylic latex and water, and ratio is formulated at the construction field (site), and its concrete grammar is referring to embodiment 20.
Embodiment 20
Polyalcohol cement basis plate-type slag-free orbit of the present invention another preparation method of emulsified asphalt slurry, it may further comprise the steps:
A. get the raw materials ready:, prepare emulsified bitumen, acrylic latex and the water of CA mortar dry powder, composition CA mortar emulsion respectively in following ratio according to the total amount of need with the CA mortar:
CA dry-mix 100 weight parts
Emulsified bitumen, acrylic latex add up to 50～55 weight parts
Water 4～8 weight parts
Wherein: the ratio of emulsified bitumen and acrylic latex is:
Emulsified bitumen: acrylic latex=100: 6～10
B. reach good water and emulsified bitumen, acrylic latex while or priority in proportion and drop in the stirrer, start stirrer, stirred 3 to 5 minutes
C. the CA mortar dry powder that measures is stirred and drops into stirrer, should not surpass 10 minutes from beginning to be dosed into the material time, throw expect after stirring 3～5 minutes;
D. finished product CA mortar check:, require with J-shaped funnel check CA mortar: degree of mobilization in 16～26 seconds, air content is 8%～10%
The subordinate list explanation:
Can select the CA mortar dry powder of a certain ratio among listed embodiment seven～embodiment 12 in the subordinate list two for use for used CA mortar dry powder among subordinate list one listed embodiment one～embodiment six each embodiment.
Can select the CA mortar emulsion of a certain proportioning among embodiment 13～embodiment 18 for use for used CA mortar emulsion among subordinate list one listed embodiment one～embodiment six each embodiment.
In the subordinate list two, embodiment seven proportionings are applicable to that long-term temperature seldom is lower than 0 ℃ warm area, the construction of temperature under 15 ℃～35 ℃ operating modes, embodiment eight is applicable to that long-term temperature is lower than 0 ℃ of cold district, temperature is in the construction under 15 ℃～35 ℃ operating modes, embodiment nine is applicable to that winter temperature is lower than 0 ℃ of cold district, and embodiment ten is applicable to that winter temperature is lower than 0 ℃ of cold district, the construction under 15 ℃～35 ℃ operating modes.
Subordinate list one: polyalcohol cement basis plate-type slag-free orbit emulsified asphalt slurry component concentration table look-up (calculating) with parts by weight
Subordinate list two: CA mortar dry powder for plate-type slag-free orbit content table look-up (calculating) with parts by weight
The proportioning table look-up of emulsified bitumen and acrylic latex in the subordinate list three CA mortar emulsions (calculating) with parts by weight
Each component concentration table look-up of the emulsified bitumen of subordinate list four CA mortar emulsions (calculating) with parts by weight
Claims (10)
1. polyalcohol cement basis plate-type slag-free orbit emulsified asphalt slurry, it is characterized in that: it is by the mixture that CA mortar dry powder, CA mortar emulsion and water are formed in following ratio, and each component concentration is calculated as with parts by weight in the mixture:
100 parts of CA mortar dry powders
50～55 parts of CA mortar emulsions
4～8 parts in water
2. polyalcohol cement basis plate-type slag-free orbit emulsified asphalt slurry according to claim 1 is characterized in that: the mixture that described CA mortar dry powder is made up of following component raw material, and the lattice component concentration with listed as parts by weight is in the mixture:
0.8～0.88 part of cement
0.065～0.085 part of swelling agent
0.01～0.04 part of cement hardener
0.0005～0.0010 part of defoamer
0.008～0.012 part of high-performance water reducing agent
2.00～2.40 parts of fine sands
0～0.0014 part of lignocellulose
0～0.0004 part of ether of cellulose
3. polyalcohol cement basis plate-type slag-free orbit emulsified asphalt slurry according to claim 1 and 2, it is characterized in that: described CA mortar emulsion is for splitting slow hardening anionic emulsified bitumen and acrylic latex multiple emulsion slowly, in this multiple emulsion, the listed as parts by weight in proportion of emulsified bitumen and acrylic latex is
100 parts of emulsified bitumens
Acrylic latex 6-10 part
Described emulsified bitumen is the mixture of being made through bitumen emulsifying machine high speed shear or grinding by matrix pitch and emulsifying agent, stablizer, water, and each component concentration with listed as parts by weight is in the mixture:
55～65 parts of matrix pitches
1～3 part of primary emulsion
0.3～0.6 part of co-emulsifier
35～40 parts in water
0.10～0.3 part of stablizer
Described acrylic latex is 50% anionic acrylic.
4. polyalcohol cement basis plate-type slag-free orbit emulsified asphalt slurry according to claim 3, it is characterized in that: described matrix pitch is 70# or 90# heavy-duty road asphalt, emulsifying agent is made of primary emulsion and co-emulsifier, described primary emulsion is to split slow hardening type anionic emulsifier slowly, described co-emulsifier is an octadecyl trimethylammonium ammonia chloride, and stablizer is an organic amine.
5. polyalcohol cement basis plate-type slag-free orbit emulsified asphalt slurry according to claim 2 is characterized in that: the swelling agent in the described CA mortar dry powder is a kind of concrete anticracking type swelling agent.
6. polyalcohol cement basis plate-type slag-free orbit emulsified asphalt slurry according to claim 2, it is characterized in that: the cement hardener in the described CA mortar dry powder is a kind of low alkali adjustable solidification agent of novel inorganic that can accelerate concrete coagulation and setting rate, and its composition is the mixture more than 2 kinds or 2 kinds in sodium metaaluminate, gas ash, silicon ash, aluminum oxide clinker, calcined alunite, zinc sulfate, unslaked lime, the Calcium Fluoride (Fluorspan) etc.
7. polyalcohol cement basis plate-type slag-free orbit emulsified asphalt slurry according to claim 2 is characterized in that: the defoamer in the described CA mortar dry powder is the tensio-active agent that alcohol, ester family macromolecule mixture and derivative thereof are formed
8. polyalcohol cement basis plate-type slag-free orbit emulsified asphalt slurry according to claim 2 is characterized in that: the high-performance water reducing agent in the described mortar dry powder is a kind of tensio-active agent, and its composition is a poly carboxylic acid system.
9. the polyalcohol cement basis plate-type slag-free orbit according to claim 1 preparation method of emulsified asphalt slurry is characterized in that:
A, get the raw materials ready:, prepare CA mortar dry powder, CA mortar emulsion and water respectively in following ratio according to the gross weight of need with the CA mortar:
CA mortar dry powder 100 weight parts
CA mortar emulsion 50～55 weight parts
Water 4～8 weight parts
B, with the measured water of pro rata and CA mortar emulsion simultaneously or successively drop in the stirrer starts stirrer and stirred 3 minutes;
C, the CA mortar dry powder that measures is dropped into stirrer, should not surpass 10 minutes from beginning to be dosed into the material time, throw expect after stirring 3～5 minutes;
D, the check of finished product CA mortar:
With J-shaped funnel check CA mortar, require: degree of mobilization in 16～26 seconds, air content is 8%～10%.
10. the polyalcohol cement basis plate-type slag-free orbit according to claim 9 preparation method of emulsified asphalt slurry is characterized in that: described CA mortar emulsion is that employing emulsified bitumen and acrylic latex are formulated in proportion at the construction field (site).
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| CN201010265652XA CN101993225A (en) | 2010-08-26 | 2010-08-26 | Cement asphalt (CA) mortar for polymer cement substrate type ballastless track and preparation method thereof |
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| CN201010265652XA CN101993225A (en) | 2010-08-26 | 2010-08-26 | Cement asphalt (CA) mortar for polymer cement substrate type ballastless track and preparation method thereof |
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| CN102503310A (en) * | 2011-11-07 | 2012-06-20 | 西南交通大学 | Super-high early-strength grouting material for repairing ballastless track structure of high speed railway |
| CN102518450A (en) * | 2011-12-09 | 2012-06-27 | 王军 | Method for grouting ordinary cement rather than ultra-fine cement when reinforcing stratum by adopting shallow excavation method |
| CN113511860A (en) * | 2021-06-02 | 2021-10-19 | 交通运输部公路科学研究所 | Emulsified asphalt modified low-resilience shotcrete and preparation method thereof |
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| CN102503310A (en) * | 2011-11-07 | 2012-06-20 | 西南交通大学 | Super-high early-strength grouting material for repairing ballastless track structure of high speed railway |
| CN102518450A (en) * | 2011-12-09 | 2012-06-27 | 王军 | Method for grouting ordinary cement rather than ultra-fine cement when reinforcing stratum by adopting shallow excavation method |
| CN102518450B (en) * | 2011-12-09 | 2014-06-18 | 温州大学 | Method for grouting ordinary cement rather than ultra-fine cement when reinforcing stratum by adopting shallow excavation method |
| CN113511860A (en) * | 2021-06-02 | 2021-10-19 | 交通运输部公路科学研究所 | Emulsified asphalt modified low-resilience shotcrete and preparation method thereof |
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Application publication date: 20110330 |